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FlutterBoost 3.0出现 Activity无法转换为ExclusiveAppComponent<Activity>的解决办法


在使用FlutterBoost 3.0过程中,一不小心升级了flutter的版本,会出现下面问题:

/flutter_boost-master/android/src/main/java/com/idlefish/flutterboost/containers/FlutterBoostActivity.java:167: 错误: 不兼容的类型: Activity无法转换为ExclusiveAppComponent
getFlutterEngine().getActivityControlSurface().attachToActivity(getActivity(), getLifecycle());
 

这是由于新版本的flutter 改动了api的原因,导致attachToActivity里面的参数转换出错;

void attachToActivity(
@NonNull ExclusiveAppComponent<Activity> exclusiveActivity, @NonNull Lifecycle lifecycle);

flutterboost官方给出的临时解决方案如下:

diff --git a/android/src/main/java/com/idlefish/flutterboost/containers/FlutterBoostActivity.java b/android/src/main/java/com/idlefish/flutterboost/containers/FlutterBoostActivity.java
index ab28533..1608eb5 100644
--- a/android/src/main/java/com/idlefish/flutterboost/containers/FlutterBoostActivity.java
+++ b/android/src/main/java/com/idlefish/flutterboost/containers/FlutterBoostActivity.java
@@ -152,7 +152,7 @@ public class FlutterBoostActivity extends FlutterActivity implements FlutterView
private void performAttach() {
if (!isAttached) {
// Attach plugins to the activity.
- getFlutterEngine().getActivityControlSurface().attachToActivity(getActivity(), getLifecycle());
+ getFlutterEngine().getActivityControlSurface().attachToActivity(delegate, getLifecycle());

if (platformPlugin == null) {
platformPlugin = new PlatformPlugin(getActivity(), getFlutterEngine().getPlatformChannel());
diff --git a/android/src/main/java/com/idlefish/flutterboost/containers/FlutterBoostFragment.java b/android/src/main/java/com/idlefish/flutterboost/containers/FlutterBoostFragment.java
index b4ead66..5f954e6 100644
--- a/android/src/main/java/com/idlefish/flutterboost/containers/FlutterBoostFragment.java
+++ b/android/src/main/java/com/idlefish/flutterboost/containers/FlutterBoostFragment.java
@@ -43,6 +43,17 @@ public class FlutterBoostFragment extends FlutterFragment implements FlutterView
private boolean isAttached = false;
private boolean isFinishing = false;

+ class FakeExclusiveAppComponent implements io.flutter.embedding.android.ExclusiveAppComponent<Activity> {
+ public void detachFromFlutterEngine() {
+ // do nothing.
+ }
+
+ public Activity getAppComponent() {
+ return getActivity();
+ }
+ }
+ private FakeExclusiveAppComponent fakeAppComponent = new FakeExclusiveAppComponent();
+
// @Override
public void detachFromFlutterEngine() {
/**
@@ -303,7 +314,7 @@ public class FlutterBoostFragment extends FlutterFragment implements FlutterView
private void performAttach() {
if (!isAttached) {
// Attach plugins to the activity.
- getFlutterEngine().getActivityControlSurface().attachToActivity(getActivity(), getLifecycle());
+ getFlutterEngine().getActivityControlSurface().attachToActivity(fakeAppComponent, getLifecycle());

if (platformPlugin == null) {
platformPlugin = new PlatformPlugin(getActivity(), getFlutterEngine().getPlatformChannel());

简化下就是:

FlutterBoostActivity中:

//getFlutterEngine().getActivityControlSurface().attachToActivity(getActivity(), getLifecycle());
getFlutterEngine().getActivityControlSurface().attachToActivity(delegate, getLifecycle());

FlutterBoostFragment中:

//getFlutterEngine().getActivityControlSurface().attachToActivity(getActivity(), getLifecycle());
getFlutterEngine().getActivityControlSurface().attachToActivity(fakeAppComponent, getLifecycle());



class FakeExclusiveAppComponent implements io.flutter.embedding.android.ExclusiveAppComponent<Activity> {
public void detachFromFlutterEngine() {}

public Activity getAppComponent() {
return getActivity();
}
}
private FakeExclusiveAppComponent fakeAppComponent = new FakeExclusiveAppComponent();

 相关链接:

​​[android] Failed to call |ActivityControlSurface.attachToActivity| due to the parameter type change · Issue #93905 · flutter/flutter · GitHub​​

​​https://github.com/alibaba/flutter_boost/issues/1451​​

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